I'm having issues with this engine since break in. It has about 3/4 of a gallon of 20%. Seems to flame out and I chase the tune waaay too much. Temps never above 270 degrees. I know they are sometimes finicky but I have 7yrs in the hobby and have run my fair share of mills.

Anyway i opened her up and found this? Looks like it's a defect at the braze line (for lack of better word). it's located right behind the bearing and you can see wear at that location on the crank

What do you guys think?

Last edited by snknby123 on Mon Aug 02, 2010 7:09 am; edited 1 time in total